:root{
  --bg:#f6f8ff;
  --surface:#ffffff;
  --text:#0b1b4d;
  --muted:rgba(11,27,77,.72);
  --border:rgba(0,0,0,.08);
  --shadow:0 18px 45px rgba(12,36,99,.10);
  --shadow-sm:0 10px 26px rgba(12,36,99,.08);
  --brand:#0b3da6;
  --brand-2:#072d7a;
  --wa:#25D366;
  --radius:18px;
  --radius-sm:14px;
  --max:1120px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;
  background:linear-gradient(180deg,var(--bg),#ffffff 40%);
  color:var(--text);
  -webkit-font-smoothing:antialiased;
}

a{color:inherit}
img{max-width:100%;display:block}

.container{max-width:var(--max);margin:0 auto;padding:24px 18px}

/* Header */
.site-header{
  position:sticky;
  top:0;
  z-index:50;
  background:linear-gradient(135deg,rgba(255,255,255,.88),rgba(245,248,255,.74));
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--border);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:12px 18px;max-width:var(--max);margin:0 auto}
.brand{display:flex;align-items:center;gap:14px;min-width:0}
.brand img{height:52px;width:auto;filter:drop-shadow(0 2px 6px rgba(0,0,0,.08))}
.brand img.electra{height:58px;opacity:.92}

.nav{display:flex;align-items:center;gap:10px}
.nav a{font-weight:650;text-decoration:none}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:10px 14px;
  border-radius:12px;
  border:1px solid rgba(11,61,166,.22);
  background:linear-gradient(180deg,var(--brand),var(--brand-2));
  color:#fff;
  box-shadow:0 10px 18px rgba(12,36,99,.12);
  transition:transform .15s ease,opacity .15s ease,background .15s ease;
}
.btn:hover{opacity:.92;transform:translateY(-1px)}
.btn.outline{background:transparent;color:var(--brand);box-shadow:none}
.btn.outline:hover{background:rgba(11,61,166,.06)}

.icon-btn{
  display:none;
  width:44px;
  height:44px;
  border-radius:12px;
  border:1px solid var(--border);
  background:rgba(255,255,255,.8);
}
.icon-btn:active{transform:scale(.98)}

.mobile-panel{
  display:none;
  padding:10px 18px 16px;
  border-top:1px solid var(--border);
}
.mobile-panel a{display:block;padding:12px 12px;border-radius:12px;text-decoration:none;font-weight:650}
.mobile-panel a:hover{background:rgba(11,61,166,.06)}

/* Hero */
.hero{
  background:radial-gradient(1200px 600px at 20% -10%,rgba(16,38,84,.16),transparent 60%),
             radial-gradient(900px 500px at 90% 0%,rgba(11,61,166,.18),transparent 55%),
             var(--surface);
  border:1px solid var(--border);
  box-shadow:var(--shadow);
  border-radius:calc(var(--radius) + 6px);
  padding:26px;
  overflow:hidden;
}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:18px;align-items:center}
.hero h1{margin:0;font-size:clamp(26px,3.2vw,40px);letter-spacing:-.02em}
.hero p{margin:10px 0 0;color:var(--muted);font-size:clamp(14px,1.4vw,16px);line-height:1.6}
.hero-actions{margin-top:16px;display:flex;gap:16px;flex-wrap:wrap}

.kpis{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.kpi{background:rgba(255,255,255,.72);border:1px solid rgba(0,0,0,.06);border-radius:16px;padding:14px;box-shadow:var(--shadow-sm)}
.kpi strong{display:block;font-size:16px}
.kpi span{color:var(--muted);font-size:13px;line-height:1.35}

/* Sections */
.section{margin-top:18px}
.section-title{display:flex;align-items:flex-end;justify-content:space-between;gap:12px;margin:0 0 10px}
.section-title h2{margin:0;font-size:20px;letter-spacing:-.01em}
.section-title p{margin:0;color:var(--muted);font-size:14px}

.grid{display:grid;grid-template-columns:repeat(12,1fr);gap:16px}
.card{
  grid-column:span 4;
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius);
  box-shadow:var(--shadow-sm);
  overflow:hidden;
  transition:transform .15s ease,box-shadow .15s ease;
}
.card:hover{transform:translateY(-2px)}
.card .pad{padding:16px}
.card h3{margin:0 0 6px;font-size:18px}
.card p{margin:0;color:var(--muted);font-size:14px;line-height:1.5}
.badge{display:inline-flex;align-items:center;padding:6px 10px;border-radius:999px;background:rgba(11,61,166,.08);border:1px solid rgba(11,61,166,.14);color:var(--brand);font-weight:650;font-size:12px}

/* Lists */
.list{margin:10px 0 0; padding-left:18px}
.list li{margin:8px 0}

.product-media{aspect-ratio:1/1;background:linear-gradient(180deg,rgba(11,61,166,.06),rgba(11,61,166,.02));display:flex;align-items:center;justify-content:center}
.product-media img{width:78%;height:78%;object-fit:contain}

/* Filters */
.filters{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin:14px 0 6px}
.input{
  flex:1 1 220px;
  min-width:220px;
  padding:12px 14px;
  border-radius:14px;
  border:1px solid var(--border);
  background:rgba(255,255,255,.85);
}
.select{padding:12px 14px;border-radius:14px;border:1px solid var(--border);background:rgba(255,255,255,.85)}

/* Contact */
.contact{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:calc(var(--radius) + 6px);
  box-shadow:var(--shadow);
  padding:20px;
}
.form{display:grid;grid-template-columns:repeat(12,1fr);gap:12px;margin-top:12px}
.form .col-6{grid-column:span 6}
.form .col-12{grid-column:span 12}
textarea.input{min-height:120px;resize:vertical}

/* Footer */
.site-footer{
  margin-top:42px;
  background:radial-gradient(1200px 600px at 20% -10%,rgba(16,38,84,.25),transparent 60%),
             linear-gradient(180deg,#0b1b4d,#091338);
  color:#fff;
  padding:28px 18px;
  border-top:1px solid rgba(255,255,255,.10);
}
.footer-inner{max-width:var(--max);margin:0 auto;display:flex;gap:18px;flex-wrap:wrap;align-items:center;justify-content:space-between}
.footer-inner .meta{opacity:.92}

/* WhatsApp floating */
.wa-fab{
  position:fixed;
  right:18px;
  bottom:18px;
  width:58px;
  height:58px;
  border-radius:50%;
  display:flex;
  align-items:center;
  justify-content:center;
  background:var(--wa);
  color:#fff;
  text-decoration:none;
  box-shadow:0 10px 26px rgba(0,0,0,.18);
  font-size:28px;
  z-index:60;
}
.wa-fab:hover{transform:translateY(-2px)}

/* Comparacao: calculadora e accordion */
.calc{display:grid;gap:10px;margin-top:12px}
.field{display:grid;gap:6px}
.field span{font-size:12px;color:var(--muted)}
.results{display:grid;gap:10px;margin-top:12px}
.result{display:flex;justify-content:space-between;gap:12px;padding:10px 12px;border-radius:14px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.10)}
.result span{color:var(--muted);font-size:13px}
.result strong{font-weight:800}

.accordion{display:grid;gap:10px}
.acc-item{border:1px solid rgba(255,255,255,.12);background:rgba(255,255,255,.05);border-radius:16px;overflow:hidden}
.acc-item summary{cursor:pointer;list-style:none;padding:12px 14px;outline:none;display:flex;gap:8px;align-items:center}
.acc-item summary::-webkit-details-marker{display:none}
.acc-item[open] summary{background:rgba(255,255,255,.06)}
.acc-body{padding:0 14px 14px;color:var(--muted);font-size:14px}

/* Responsive */
@media (max-width: 920px){
  .hero-grid{grid-template-columns:1fr}
  .card{grid-column:span 6}
}
@media (max-width: 720px){
  .nav{display:none}
  .icon-btn{display:inline-flex;align-items:center;justify-content:center}
  .mobile-panel{display:block}
  .mobile-panel[hidden]{display:none}
  .card{grid-column:span 12}
  .form .col-6{grid-column:span 12}
  .brand img{height:44px}
  .brand img.electra{height:50px}
}

@media (prefers-reduced-motion: reduce){
  *{scroll-behavior:auto}
  .btn,.card{transition:none}
}